CVE-2009-0565Office Memory Corruption
Buffer overflow in Microsoft Office Word 2000 SP3, 2002 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote…
Published Jun 10, 2009 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2009-0565 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Office (Microsoft), Office Compatibility Pack For Word Excel Ppt 2007 (Microsoft), Office Word (Microsoft) and 2 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 41% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
41%
Higher than 98.6% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
42/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Buffer overflow in Microsoft Office Word 2000 SP3, 2002 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a Word document with a malformed record that triggers memory corruption, aka "Word Buffer Overflow Vulnerability."
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OfficeMicrosoft | 2004, 2008 | n/a |
| Office Compatibility Pack For Word Excel Ppt 2007Microsoft | See advisory | n/a |
| Office WordMicrosoft | 2000-sp3, 2002-sp3, 2003-sp3, 2007-sp1, 2007-sp2 | n/a |
| Office Word ViewerMicrosoft | 2003-sp3 | n/a |
| Open XML File Format ConverterMicrosoft | See advisory | n/a |
Timeline
Publicly disclosed
Jun 10, 2009
Last updated
Apr 22, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploitExploitDB-14693
- exploitExploitDB-17177
- other54960
- otherMS09-027
- other8206
FAQ
Common Questions.
Buffer overflow in Microsoft Office Word 2000 SP3, 2002 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via…
Affected: Office (Microsoft) versions 2004, 2008; Office Compatibility Pack For Word Excel Ppt 2007 (Microsoft); Office Word (Microsoft) versions 2000-sp3, 2002-sp3, 2003-sp3, 2007-sp1, 2007-sp2, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2009-0565 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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